Simply Cycling 24 Inch x 1.75-2.125 Inner Tube with Schrader Valve

Simply Cycling CC011 Inner Tube, 24 x 1.75-2.125, Schrader ValveTwenty four inch is the wheel that sits between a child's bike and an adult one. It is what most children move onto at around eight or nine, and it is the size junior mountain bikes are built around, so a 24 inch tube tends to be bought for a bike that is being ridden hard rather than gently. Simply Cycling Inner Tube in 24 x 1.75-2.125 is made from butyl rubber and air leakage tested, so it holds pressure between rides.It also turns up on adult bikes with small frames, on some folding bikes, and on older machines built before 26 inch became the default, so the size is worth checking rather than assuming.Which valve do I need?This one has a Schrader valve, the wider type also used on car tyres. It is what nearly all junior and general purpose bikes are fitted with, and it takes any standard pump, including the airline at a petrol station.The way to check is to look at the old tube or the hole in the rim. A Schrader valve i